Download or read book Topologie des coulements tridimensionnels d coll s written by DÉLERY Jean and published by Lavoisier. This book was released on 2013-06-01 with total page 185 pages. Available in PDF, EPUB and Kindle. Book excerpt: Le passage du bidimensionnel au tridimensionnel exige une remise en question de plusieurs notions (points de décollement et de recollement, bulbe de décollement, zone de recirculation, ligne de courant limite…) dont l’emploi en trois dimensions est inadéquat, voire dangereux. La théorie des singularités des systèmes d’équations différentielles de Poincaré permet l’introduction de concepts tels que les points singuliers, les lignes de séparation (ou d’attachement), les surfaces de séparation (ou d’attachement) et de règles topologiques qui permettent une description cohérente des écoulements tridimensionnels. Le décollement peut ainsi être défini de façon précise et le mécanisme de formation des tourbillons, du type trombe ou en fer à cheval, décrit rationnellement. Ces notions forment une grammaire qui est appliquée à la description d’écoulements décollés typiques se formant sur des ailes, sur des fuselages, devant des obstacles, derrière un arrière-corps ou autour d’un véhicule automobile. Le bidimensionnel est reconsidéré à la lumière des concepts du tridimensionnel, ce qui montre son caractère exceptionnel.

Download or read book Singular Perturbations and Boundary Layer Theory written by C.M. Brauner and published by Springer. This book was released on 2006-11-15 with total page 551 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Terminologie de L approvisionnement en Eau Et de L assainissement Du Milieu written by Paul J. Biron and published by World Bank Publications. This book was released on 1987 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: This glossary presents English-French and French-English terminology related to water supply (investigation, production, distribution), environmental sanitation, and health education.

Download or read book Production d nergie lectrique partir des sources renouvelables Coll Sciences et technologies de l nergie lectrique written by ROBYNS Benoît and published by Lavoisier. This book was released on 2012-05-01 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les questions de développement durable et de projection des besoins futurs favorisent l'apparition de nouvelles technologies de production d'énergie et entraînent un changement de comportement des usagers. Ce livre contribue à une meilleure appréhension de ces technologies émergentes de production d'électricité. Il analyse leurs enjeux, leurs sources et leurs moyens de conversion électrique. Suivant une approche didactique et générale, cet ouvrage présente : - les systèmes de production d'électricité à partir de ressources énergétiques renouvelables des petites aux moyennes puissances (jusque 100 à 200 MW), - les notions électrotechniques de base nécessaire à la compréhension des caractéristiques de fonctionnement de ces convertisseurs, - les contraintes et problèmes d'intégration dans les réseaux électriques de ces moyens de production.

Download or read book Aero Dictionary English French French English written by and published by . This book was released on 1920 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Progress in Aeronautical Sciences written by D. Küchemann and published by Elsevier. This book was released on 2016-10-13 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt: Progress in Aeronautical Sciences, Volume 10 provides information pertinent to the development in aeronautical sciences. This book discusses a variety of topics, including thermoelasticity, turbulent boundary, as well as the manufacturing methods, reliability, problem areas, and applications under development in fluidic systems. Organized into six chapters, this volume begins with an overview of the theoretical problems of elasticity. This text then discusses the state of research in the complex fields of turbulent boundary layers with fluid injections. Other chapters consider as well the problems of supersonic flow past wings and bodies. This book discusses as well the flow in hypersonic wakes in ionized gases. The reader is also introduced to the possible applications of the compressible turbulent boundary layer with fluid injection. The final chapter discusses the components used in fluidic systems, which are described with emphasis on their general system of operation and general properties. This book is a valuable resource for engineers.

Download or read book Military Dictionary written by United States. War Department and published by . This book was released on 1943 with total page 836 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Military Dictionary advance Edition written by United States. War Dept. Military dictionary project and published by . This book was released on 1943 with total page 862 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Revue Roumaine Des Sciences Techniques written by and published by . This book was released on 1968 with total page 1554 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dictionar Technic Poliglot written by and published by Ardent Media. This book was released on 1967 with total page 1258 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Group 15 Mechanics of Fluids written by A. T. Troskolański and published by Elsevier. This book was released on 2014-05-12 with total page 463 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vocabulary of Mechanics, Volume 2: Group 15. Mechanics of Fluids provides information pertinent to the fundamental aspects of the mechanics of fluids. This book covers a variety of topics, including fluid mechanics, hydrostatics, aeromechanics, gas dynamics, aeroelasticity, and dynamic meteorology. Organized into two parts encompassing 95 sections, this volume begins with an overview of the branch of mechanics dealing with the phenomena of fluids in motion and at rest. This text then deals with the geometrical description of the flow of matter, irrespectively of the forces producing the motion. Other sections consider the instantaneous motion of a fluid element wherein the motion is composed of translation of the center of mass of a fluid element. This book discusses as well the relative equilibrium of liquids. The final section deals with the atmospheric air motion caused by several factors. This book is a valuable resource for engineers, scientists, and research workers.

Download or read book Hydraulic Machinery and Cavitation written by Enrique Cabrera and published by Springer. This book was released on 2015-02-27 with total page 1210 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydraulic machinery such as turbines and pumps is widely used around the world. Related topics concerning design, operation and maintenance are of relevant interest. In this context, cavitation is a phenomenon to be taken into account, and this was treated in the XVIII IAHR Symposium on Hydraulic Machinery and Cavitation which took place in Valencia, Spain, 16th-19th September, 1996 and which was hosted by the Polytechnic University of Valencia. The proceedings of the Symposium have been published in two volumes. In this first volume, the papers included cover the following topics: Hydraulic Turbines, Analysis and Design Hydraulic Pumps Hydraulic Elements, Dynamic Characterization and Hydraulic Behaviour Cavitation and Sand Erosion In the second volume, the papers included cover the following topics: Hydraulic Transients and Control Systems Related to Hydraulic Machinery and Plants Oscillatory and Vibration Problems in Hydraulic Machinery and Power Stations Experimental Investigations related to Hydraulic Machinery and its Applications Practical Applications of the Hydraulic Machinery Monitoring, Predictive Maintenance and Refurbishment The 119 papers presented at the Symposium, from research groups, consulting companies and manufacturers, constitute an important collection for investigators, engineers and technicians who are interested in updated information on hydraulic machinery. This book is intended to be a reference text comprising the latest innovations on this subject.

Download or read book Fans and Ventilation written by William Cory and published by Elsevier. This book was released on 2010-07-07 with total page 457 pages. Available in PDF, EPUB and Kindle. Book excerpt: The practical reference book and guide to fans, ventilation and ancillary equipment with a comprehensive buyers' guide to worldwide manufacturers and suppliers. Bill Cory, well-known throughout the fans and ventilation industry, has produced a comprehensive, practical reference with a broad scope: types of fans, how and why they work, ductwork, performance standards, testing, stressing, shafts and bearings. With advances in technology, manufacturers have had to continually improve the performance and efficiency of fans and ventilation systems; as a result, improvements that once seemed impossible have been achieved. Systems now range in all sizes, shapes, and weight, to match the ever increasing applications. An important reference in the wake of continuing harmonisation of standards throughout the European Union and the progression of National and International standards. The Handbook of Fans and Ventilation is a welcome aid to both mechanical and electrical engineers. This book will help you to... •Understand how and why fans work •Choose the appropriate fan for the right job, helping to save time and money •Learn installation, operational and maintenance techniques to keep your fans in perfect working order •Discover special fans for your unique requirements •Source the most appropriate equipment manufacturers for your individual needs - Helps you select, install, operate and maintain the appropriate fan for your application, to help you save time and money - Use as a reference tool, course-book, supplier guide or as a fan/ventilation selection system - Contains a guide to manufacturers and suppliers of ventilation systems, organised according to their different styles and basic principles of operation

Download or read book Current Aeronautical Fatigue Problems written by J. Schijve and published by Elsevier. This book was released on 2014-05-12 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt: Current Aeronautical Fatigue Problems contains the papers presented at the Symposium on Current Aeronautical Fatigue Problems, held in Rome in April 1963. The symposium is held with the purpose of reaching a fruitful and effective exchange of information on all aspects of fatigue problems in aeronautics. The main subjects covered in the symposium were: elevated-temperature effects, crack propagation and residual static strength, and structural fatigue testing. The specific topics discussed include the importance of non-linear interactions which affect creep and strength properties under variable stress and temperature; the factors affecting the fatigue life of a light alloy supersonic transport aircraft; the techniques of fractography applicable to crack propagation problems; and the use of ordered, cyclic, test loadings to represent the complex loading histories generated in service. Aeronautical engineers, materials scientists, physicists, and metallurgists will find the book invaluable.

Download or read book coulements et r actions chimiques 2 Applications aux m langes homog nes r actifs written by PRUD'HOMME Roger and published by Lavoisier. This book was released on 2013-06-01 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les écoulements avec réactions chimiques peuvent intervenir dans des domaines variés tels que la combustion, le génie des procédés, l’aéronautique, l’environnement atmosphérique et aquatique. Les exemples d’application choisis dans ce volume portent principalement sur les mélanges réactifs homogènes susceptibles d’intervenir dans les propulseurs, en génie des procédés et en combustion : - propagation du son et écoulements monodimensionnels non diffusifs dans les tuyères pouvant comporter des déséquilibres des modes internes d’énergie des molécules ; - réacteurs chimiques idéaux, stabilisation de leurs points de fonctionnement stationnaires dans le cas homogène à mélange parfait et instruments classiques d’analyse expérimentale et théorique tels les bilans de population, la distribution des temps de séjour et celle des âges ; - flammes laminaires et turbulentes en séparant bien celles qui sont prémélangées de celles qui ne le sont pas et qui ne relèvent pas des mêmes mécanismes, mais qui interviennent conjointement dans le cas des flammes triples. Écoulements et réactions chimiques 2 apporte également des précisions sur l’analyse dimensionnelle, la thermodynamique statistique avec couplage entre modes internes d’énergie et réactions chimiques, l’apparition et la dissipation de la turbulence fluide ainsi que son traitement statistique, les bifurcations, les flammes en milieu confiné et de diffusion.

Download or read book Publication written by France. Office national d'études et de recherches aéronautiques and published by . This book was released on 1952 with total page 884 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book AGARD Lecture Series written by and published by . This book was released on 199? with total page 910 pages. Available in PDF, EPUB and Kindle. Book excerpt: